package com.sakura.takeaway.common;

import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import java.sql.SQLIntegrityConstraintViolationException;

/**
 * 全局异常处理器
 * @author Sakura
 * @Date 2022-07-09 9:43
 */

@ControllerAdvice(annotations = {RestController.class, Controller.class})
@ResponseBody
@Slf4j
public class GlobalExceptionHandler {

    /**
     * 重复名字异常处理方法
     * @param ex
     * @return
     */
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R<String> exceptionHandler(SQLIntegrityConstraintViolationException ex){
        log.error(ex.getMessage());

        //Duplicate entry 'zhangsan' for key 'idx_username'
        if(ex.getMessage().contains("Duplicate entry")){
            String[] split = ex.getMessage().split(" ");
            String msg = split[2]+"已存在";
            return R.error(msg);
        }

        return R.error("未知错误");
    }

    /**
     * 自定义异常处理方法：菜品、套餐和分类是否关联
     * @param ex
     * @return
     */
    @ExceptionHandler(CustomException.class)
    public R<String> exceptionHandler(CustomException ex){

        log.error(ex.getMessage());

        return R.error(ex.getMessage());
    }
}
